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    cadvantag's Avatar
    cadvantag Posts: 2, Reputation: 1
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    #1

    Jun 17, 2007, 08:06 PM
    Air Conditioner Stopped working
    Last used the air conditioner was last summer, with the heat coming early this year we tried it and it didn't work. This is what I know so far:

    1) I switched out the thermostats (we have two) and it made no change
    2) checked the exterior fuses and they are good
    3) Inside Fan works
    4) When I take the exterior panel off I can push in the "switch" and the air conditioner works.


    Why would this "switch" fail and the outside fan/blades not work?

    Thanks for any help!

    Brian
    esquire1's Avatar
    esquire1 Posts: 2,483, Reputation: 209
    Ultra Member
    		  
    #2

    Jun 17, 2007, 08:12 PM
    That switch, The contactor, Needs 24 volts present to pull in. You will need to check that. Disconnect the power to unit and check from side to side of the coil for continuity. If that checks OK then put power on and turn thermost to call for cool and se that you have 24 volts present at same place as checked for continuity. Post back with results
    cadvantag's Avatar
    cadvantag Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Jun 17, 2007, 08:19 PM
    Doug,

    Do I disconnect power to AC or the switch ?

    Thanks,
    Brian
    esquire1's Avatar
    esquire1 Posts: 2,483, Reputation: 209
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    #4

    Jun 17, 2007, 08:22 PM
    Shut the power off at breaker box or disconnet box at unit. There is 240volt of elec there. Work carefully. Also turn stat off as well
    esquire1's Avatar
    esquire1 Posts: 2,483, Reputation: 209
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    #5

    Jun 17, 2007, 08:26 PM
    Also with power off look inside the contacts. Many times I have seen a bug between them causing power not to make
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